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MHT CET · Maths · Inverse Trigonometric Functions

If \(\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1\), then the value of \(x\) is

  1. A \(\frac{1}{5}\)
  2. B \(1\)
  3. C \(0\)
  4. D \(-\frac{1}{5}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{1}{5}\)

Step-by-step Solution

Detailed explanation

\(\sin^{-1} \frac{1}{5}+\cos^{-1} x = \sin^{-1}(1)\) \(\sin^{-1} \frac{1}{5}+\cos^{-1} x = \frac{\pi}{2}\)